This article has been retracted by the Editor-in-Chief of Comparative Clinical Pathology due to similarities to a previously published work; Wafaa M. Ashour, Hassan Amin, Irin M. Sabri, Aisha M. Samir, Dalia A.H. Zaki, Mona M. Fathy: Combined blood and pleural levels of mesothelin and osteopontin for the diagnosis of malignant pleural mesothelioma. Egyptian Journal of Chest Diseases and Tuberculosis, Volume 61, Issue 3, July 2012, Pages 121–128. http://dx.doi.org/10.1016/j.ejcdt.2012.10.016; http://www.sciencedirect.com/science/article/pii/S0422763812000179.